IRRIGATIONKING RK-21 Impact Sprinkler Nozzles Npt Male 810256030009 1/2 2.9 1.8

( Brand: Irrigationking ), ( Manufacturer Part Number: RK-21 ), ( Part Type: Impact Sprinkler Nozzle ), ( UPC: 810256030009 ), ( Gtin: 00810256030009 )

Review IRRIGATIONKING 1/2 Inch Plastic Impact Sprinkler Nozzles 2.9 1.8mm Npt Male

The Irrigation King RK-21 1/2 Impact Sprinkler Nozzles are a must-have accessory for any irrigation system. These nozzles are designed to fit 2.9 and 1.8 NPT male threads and are compatible with 1/2 inch impact sprinklers.

These nozzles are engineered to provide uniform water distribution, making them ideal for large lawns or landscapes. The impact design of the nozzle ensures reliable operation even in windy conditions, as the nozzle is able to adjust its spray pattern to maintain coverage.

The RK-21 nozzles offer a versatile range of spray patterns, including a full circle, 2-circle, and jet stream. The full circle pattern covers an area of up to 5,000 square feet, while the 2-circle pattern offers coverage of up to 7,500 square feet. The jet stream pattern is perfect for watering long, narrow areas such as driveways or walkways.

These nozzles are made from high-quality, durable materials, ensuring long-lasting performance. The nozzle bodies are constructed from brass, which is resistant to corrosion and wear, while the spray heads are made from impact-resistant plastic.

Installation of the RK-21 nozzles is easy and can be done in just a few simple steps. Simply remove the existing nozzle and screw on the new one using a wrench. The nozzle comes with a rubber washer to ensure a tight seal and prevent leaks.

The Irrigation King RK-21 1/2 Impact Sprinkler Nozzles are an essential addition to any irrigation system. They offer reliable, uniform water distribution, are easy to install, and are made from high-quality, durable materials. Whether you're watering a large lawn or a small garden, these nozzles will help ensure that your plants receive the water they need to thrive.

Irrigation King RK-21 1/2 Impact Sprinkler Nozzles (2.9 GPM, 1.8 NPT Male) are a popular choice for those looking to upgrade their irrigation systems. Here are some pros and cons to help you make an informed decision:

1. Efficient Water Usage: These nozzles have a flow rate of 2.9 gallons per minute (GPM), making them suitable for larger lawns and gardens. They deliver water efficiently, minimizing runoff and reducing water waste.

2. Durability: The RK-21 nozzles are made of brass, making them durable and long-lasting. They can withstand harsh weather conditions and rough handling.

3. Versatility: These nozzles can be used with various irrigation systems, including rotor and spray heads. They are also compatible with most irrigation controllers.

4. Easy Installation: The 1.8 NPT male thread makes installation quick and easy. The nozzles can be installed without the need for additional adapters or tools.

5. Adjustable Coverage: The nozzles offer adjustable coverage, allowing you to customize the watering pattern to suit your lawn or garden's needs.

1. Cost: Compared to standard nozzles, the RK-21 nozzles can be more expensive. However, their durability and efficiency make them a worthwhile investment.

2. Limited Compatibility: While the nozzles are compatible with various irrigation systems, they may not be suitable for all types. It is essential to check the compatibility of the nozzles with your specific irrigation system before making a purchase.

3. Requires Regular Maintenance: The nozzles may require occasional cleaning and adjustment to ensure optimal performance.

The Irrigation King RK-21 1/2 Impact Sprinkler Nozzles (2.9 GPM, 1.8 NPT Male) offer several advantages, including efficient water usage, durability, versatility, and easy installation. While they may be more expensive than standard nozzles, their long-term benefits make them a worthwhile investment. However, it is important to ensure compatibility with your irrigation system and be prepared for occasional maintenance. Overall, these nozzles are a great choice for those looking to upgrade their irrigation systems and save water in the long run. I would recommend considering these nozzles if you are in the market for a new irrigation system component.

Details:

Drive mechanism: spring arm impact. 12M for higher distribution uniformity. 30-55 psi.Trajectory angle: 24. Manufacturer: IrrigationKing.

Material: Plastic. Bayonet nozzle connection for easy service in the field. Color: Black. Features: Color coded nozzles for easy size identification.

Throw radius: 2.6-7.3 feet. Recommended spacing up to 40 ft. Nozzles with integrated stream straightening vane for long range. Made high quality plastic material for durability and corrosion resistance.

Brand: IrrigationKing.

part #: rk21 price

• $43.38

specifications indusfir:

• brand: Irrigationking
• mpn: Rk-21
• part type: Impact Sprinkler Nozzle
• upc: 810256030009
• gtin: 00810256030009

returns indusfir:

• policy: Returns Accepted
• time: 30 Days
• method: Money back
• paid by: Buyer

payments indusfir:

• other
• wallet: Apple-pay
• credit card: Diners-club

offer indusfir:

• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: December 4, 2025
• sold: 0

seller indusfir:

• rating: 97.8%
• # reviews: 605
• city: US

shipping indusfir:

• transit: 5-9 Days
• cost: $0.00
• type: Fixed
• service: Economy
• class: Economy

general indusfir:

• Facility Maintenance Safety > Fire Protection Equipment > Other Fire Protection Equipment
• condition: New